Oil-display device



Patented Nov. 27, 1928.

UNETED s'rA'rEs PATENT @FFICE.

HAEIS III. B911, OF IVIINNEAPOLIS, IVIINNESOTA, ASEIGNOR TO 130EIi'IANUFACTURING CGMPANY, OF Iv'IINNEAPOLIS, MINNESOTA, A CORPORATION OFMINNESOTA.

OIL-DISPLAY DEVICE.

December 29, 1927.

This invention relates to improvements in a device for displayingliquid, ordinarily for advertising purposes, and is divisional of myapplication for oil display devices, filed March 16th, 1927, SerialNumber 17 5,903.

An important object-of the invention is to provide means whereby largebubbles may be successively produced in a liquid. Another importantobject is to provide means for producing the bubbles at timed intervals.A more specific object is to provide an arrangement whereby only singlelarge bubbles are formed and delivered alternately from opposite sidesof the bubble-forming device, which device is automatically operated asthe result of bubble formation to release the bubble, the results beingproduced by displacement.

Features of the invention include the broad idea of producing bubbles inthe manner set forth, along with the manner of automatically operatingthe device as the result of displacement, along with all the details ofconstruc-:

tion. I

Advantages of the device will appear from the description of thedrawings forming a part of this application, and in said drawings Figure1 is a vertical section through a receptacle showing my device appliedfor forming bubbles within the liquid contained in the receptacle;

Figure 2 is an enlarged detailed sectional view corresponding to Figure1; and

Figure 3 is a fragmentary plan illustrating the bubble-forming device.

Numeral 1 represents a suitable base grooved as at 2 and having packing3 therein. The numeral 4: represents a tube of transparent material suchas glass having its lower end seated upon the packing. The tube issupported and clamped to form a water tight connection with the packingby means of a plate 5 and bolts 6 arranged substantially as shown. Theremay be a number of receptacles 4 mounted side by side, as suggested in afragmentary manner at the right of Figure- 1. Means for delivering fluidbeneath the element in this instance comprises a pipe hav- 1 ing anupstanding portion 7 projecting upwardly through the plate 1 and securedby No. 175,903. Divided and this application filed Serial No. 53 E349.

means of the packing gland construction 8.

The bubble-forming element 9 is formed substantially as shown and ispivotally mounted as at 10 upon upstanding arms 11. The element is ofhollow configuration and has a central partition or division element 12.The end walls 13 are cut away as at 14:, and the height of the divisionelement is such that its lower end 16 can swing to occupy the positionsrespectively shown in full and dotted lines in Figure 2. The lower edges17 form stops to limit the oscillatory movement.

The arrangement is such that air is first delivered into one pocketwhich gradually displaces the liquid in a manner shown at 18 in Figure1, finally resulting in raising or rocking the element, to release thebubble in the manner shown in Figure 1. This release places the oppositepocket in a position to receive the delivered air, and the cycle offilling and releasing is repeated. Bubbles are thus alternately releasedfrom opposite sides of the element.

I claim as my invention:

1. In combination, a container of transparent material having liquidtherein, an element submerged in the liquid and having a downwardlyfacing concave side and means for delivering gas beneath the element,said element having two compartments and being rockably mounted, thearrangement being such that gas is first delivered into one compartment,to cause the element to swing and release a bubble, and when so swung todispose the other compartment to receive gas.

2. In combination, a container having liquid therein, a base platewithin the container, an element submerged in the liquid and having adownwardly facing concave side, means for delivering beneath theelement, said element arranged over said base plate and having twocompartments, and being rockably mounted, the arrangement being suchthat gas is first delivered into one compartment to cause the element toswing and release a bubble, and when so swung to dispose the othercompartment to receive the gas.

3. In combination a container having liquid therein, an elementsubmerged in the liquid and release a bubble, and when so swung todispose the other compartment for receiving 7 gas. 10

In witness whereof, I have hereunto set my hand this 27th day ofDecember 1927.

HANS M. BOE.

